The Math.min() function returns the smallest of the numbers given as input parameters, or Infinity if there are no parameters. SyntaxMath.min()
Math.min(value0)
Math.min(value0, value1)
Math.min(value0, value1, /* … ,*/ valueN)
Parametersvalue1 , …, valueN
Zero or more numbers among which the lowest value will be selected and returned. Return valueThe smallest of the given numbers. Returns NaN if any of the parameters is or is converted into NaN . Returns
Infinity if no parameters are provided. DescriptionBecause min() is a static method of Math , you always use it as
Math.min() , rather than as a method of a Math object you created (Math is not a constructor). Math.min.length is 2, which weakly signals that it's designed to handle at least two parameters.
Using Math.min()This finds the min of x and y and
assigns it to z : const x = 10;
const y = -20;
const z = Math.min(x, y); // -20
Clipping a value with Math.min() Math.min() is often used to clip a value so that it is always less than or equal to a
boundary. For instance, this let x = f(foo);
if (x > boundary) {
x = boundary;
}
may be written as this const x = Math.min(f(foo), boundary);
Math.max() can be used in a similar way to clip a value at the other end.
Specifications
Specification |
---|
ECMAScript Language Specification # sec-math.min
|
Browser compatibilityBCD tables only load in the browser The Math.max() function returns the largest of the numbers given as input parameters, or -Infinity if there are no parameters. SyntaxMath.max()
Math.max(value0)
Math.max(value0, value1)
Math.max(value0, value1, /* … ,*/ valueN)
Parametersvalue1 , value2 , … , valueN
Zero or more numbers among which the largest value will be selected and returned. Return valueThe largest of the given numbers. Returns NaN if any of the parameters is or is converted into NaN . Returns
-Infinity if no parameters are provided. DescriptionBecause max() is a static method of Math , you always use it as
Math.max() , rather than as a method of a Math object you created (Math is not a constructor). Math.max.length is 2, which weakly signals that it's designed to handle at least two parameters.
Using Math.max()Math.max(10, 20); // 20
Math.max(-10, -20); // -10
Math.max(-10, 20); // 20
Getting the maximum element of an array
Array.prototype.reduce() can be used to find the maximum element in a numeric array, by comparing each value: const arr = [1, 2, 3];
const max = arr.reduce((a, b) => Math.max(a, b), -Infinity);
The following function uses Function.prototype.apply() to get the maximum of an array. getMaxOfArray([1, 2, 3]) is equivalent to Math.max(1, 2, 3) , but you can use getMaxOfArray()
on programmatically constructed arrays. This should only be used for arrays with relatively few elements. function getMaxOfArray(numArray) {
return Math.max.apply(null, numArray);
}
The spread syntax is a shorter way of writing the apply solution to get the maximum of an array: const arr = [1, 2, 3];
const max = Math.max(...arr);
However, both spread (... ) and apply will either fail or return the wrong result if the array has too many elements,
because they try to pass the array elements as function parameters. See Using apply and built-in functions for more details. The reduce solution does not have this problem. Specifications
Specification |
---|
ECMAScript Language Specification # sec-math.max
|
Browser compatibilityBCD tables only load in the browser
What is a min in JavaScript?
Zero or more numbers among which the lowest value will be selected and returned.
What does Max mean in JavaScript?
max() The Math. max() function returns the largest of the zero or more numbers given as input parameters, or NaN if any parameter isn't a number and can't be converted into one.
What is the difference between Math MIN () and Math MAX ()?
Math. min() to find the minimum of n elements. Math. max() to find the maximum of n elements.
How do you find min and max value in an array in JavaScript?
Method 1: Using Math.min() and Math.max()
The min() and max() methods of the Math object are static functions that return the minimum and maximum element passed to it. These functions could be passed an array with the spread(…) operator.
|